intake manifold
Low (Technical)Technical/Professional, Automotive/Mechanical
Definition
Meaning
An assembly of passages in an internal combustion engine that distributes the air-fuel mixture from the carburetor/throttle body to the cylinders.
The specific component in an engine responsible for delivering the correct air-fuel mixture for combustion.
Linguistics
Semantic Notes
Specifically refers to the component for the mixture in petrol/gasoline engines. Diesel engines use an 'intake manifold' only for air, as fuel is injected separately.
Dialectal Variation
British vs American Usage
Differences
British English tends to favour 'inlet manifold'. 'Intake manifold' is universally understood but 'inlet manifold' is more traditionally British.
Connotations
Both have identical technical meanings. 'Intake manifold' is globally standard in modern technical literature.
Frequency
UK: 'Inlet manifold' has higher frequency in historical texts and among older mechanics. 'Intake manifold' is now dominant, especially in modern OEM parts catalogues. US: 'Intake manifold' is virtually exclusive.
Vocabulary
Collocations
Grammar
Valency Patterns
The intake manifold [verb e.g., distributes] the mixture.We need to [verb e.g., replace] the intake manifold.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “[None specific to this term]”
Usage
Context Usage
Business
Rare, except in manufacturing/procurement contexts (e.g., 'We supply intake manifolds to major OEMs.').
Academic
Found in engineering and automotive technology textbooks, research papers on engine design.
Everyday
Uncommon. Used only when discussing car repairs with mechanics.
Technical
The primary register. Standard term in repair manuals, technical schematics, and diagnostics.
Examples
By Part of Speech
verb
British English
- [None. 'Manifold' as a verb is archaic and unrelated to this noun phrase.]
American English
- [None. 'Manifold' as a verb is archaic and unrelated to this noun phrase.]
adverb
British English
- [None applicable.]
American English
- [None applicable.]
adjective
British English
- The inlet manifold gasket needs replacing.
American English
- I bought an aftermarket intake manifold spacer.
Examples
By CEFR Level
- The mechanic is looking at the engine. He points to the intake manifold.
- A common problem in older cars is a cracked intake manifold, which causes poor engine performance.
Learning
Memory Aids
Mnemonic
Think 'INtake' for what goes INto the engine. A 'manifold' is a pipe with many folds/branches leading to each cylinder.
Conceptual Metaphor
A plenum or distribution tree; the 'lungs' or 'bronchial tubes' of the engine that feed air/fuel to the 'heart' (cylinders).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid direct calque 'впускной многообразный'. The correct translation is 'впускной коллектор'. 'Manifold' here means 'multiple', not 'many shapes'.
Common Mistakes
- Spelling: 'intake manifould' (incorrect). Grammar: Using as a verb (e.g., 'He manifolded the air' is nonsense). Concept: Confusing it with the carburetor or throttle body, which are separate components feeding *into* the manifold.
Practice
Quiz
What is the primary function of an intake manifold?
FAQ
Frequently Asked Questions
No. An intake manifold delivers the air-fuel mixture INTO the cylinders. An exhaust manifold collects exhaust gases FROM the cylinders and channels them out.
Modern engines often use plastic (composite) manifolds for reduced weight, lower cost, and better heat insulation, which helps maintain a denser air charge.
Yes. A leaking or cracked intake manifold can cause an 'unmetered air leak,' disrupting the correct air-fuel ratio, leading to rough idling, poor performance, and increased fuel consumption.
A dual-plane manifold separates the cylinder banks into two plenums, often improving low-end torque. A single-plane manifold uses one common plenum, typically favouring high-RPM power in performance engines.